#3 Sting

Many will consider this as an unnecessary inclusion in the list, considering the fact that Sting has only been a part of one WrestleMania. However, it is important that The Icon is mentioned here.
Ever since the late 80's, Sting has been a household name. The most fascinating thing about The Icon is that he made it big in WCW without ever jumping ship to WWE, even after WCW ended. WWE approached him on multiple occasions but the Icon always had a reason to decline their offers.
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When he finally appeared at Survivor Series 2014, all hell broke loose. Sting made his WWE debut by costing The Authority (managed by Triple H) their match at Survivor Series. The feud with Triple H then culminated at WrestleMania 31, with The Icon losing his debut match. The bout was mainly centered around the WWF vs. WCW feud, featuring run-ins by NWO and DX members.
Almost 5 months after Wrestle<ania 31, Sting suffered a career-threatening injury at the hands of Seth Rollins. This forced Sting to retire from professional wrestling, cementing his WrestleMania record of 0-1. Sting's legacy and his contribution to the professional wrestling world are still lauded to this day.